java 部署到Linux - docker

打包

Maven -- Lifecycle -- clean -- [双击执行]
Maven -- Lifecycle -- package -- [双击执行]

Dockerfile

FROM openjdk:8-jdk-alpine
VOLUME /tmp
ADD Spring-Boot-Redis-Mybatis-Plus-0.0.1-SNAPSHOT.jar app.jar
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]

其中第3行,"Spring-Boot-Redis-Mybatis-Plus-0.0.1-SNAPSHOT.jar"
根据你自己的应用名称修改 ~~~

将打包的jar文件和Dockerfile复制到Linux服务器中

[
"Spring-Boot-Redis-Mybatis-Plus-0.0.1-SNAPSHOT.jar",
"Dockerfile"
]
我是将这两个文件放到一个文件夹"jrm"下了

$ ls /root/release/jrm/
Dockerfile  Spring-Boot-Redis-Mybatis-Plus-0.0.1-SNAPSHOT.jar

docker build

 $ cd /root/release/jrm/

$  docker build -t jrm .

Step 1/4 : FROM openjdk:8-jdk-alpine
 ---> a3562aa0b991
Step 2/4 : VOLUME /tmp
 ---> Using cache
 ---> 6f18f2cb03cd
Step 3/4 : ADD Spring-Boot-Redis-Mybatis-Plus-0.0.1-SNAPSHOT.jar app.jar
 ---> e81334bc500c
Step 4/4 : ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
 ---> Running in 77c5661555be
Removing intermediate container 77c5661555be
 ---> 7069424d6f1c
Successfully built 1111424d2222
Successfully tagged jrm:latest

docker run

docker run -itd --name=jrm -p 8060:8060 -v /etc/localtime:/etc/localtime -v /etc/timezone:/etc/timezone jrm

到这里如果么有出意外的话就已经部署完成了 ---

附加 - 查看日志(如果你应用中有日志)

#进入容器
$ docker exec -it jrm /bin/sh

#查看文件列表
/ # ls
app.jar  bin      dev      etc      home     lib      logs     media    mnt      opt      proc     root     run      sbin     srv      sys      tmp      usr      var
#查看log日志

/ # cat /logs/info/spring.log
2021-07-26 02:44:58.506  INFO 1 --- [main] .r.SpringBootRedisMybatisPlusApplication : Starting SpringBootRedisMybatisPlusApplication v0.0.1-SNAPSHOT using Java 1.8.0_212 on e7515a9700ed with PID 1 (/app.jar started by root in /)
2021-07-26 02:44:58.508  INFO 1 --- [main] .r.SpringBootRedisMybatisPlusApplication : The following profiles are active: pre
2021-07-26 02:45:00.294  ...

结尾

本来没有想直接上docker,而是想原始的步骤来将Java部署到Linux上,
但是看了下原始方法还需要安装Tomcat ---
还是想直接docker部署吧 ---